# libpng

> free software library

**Wikidata**: [Q838041](https://www.wikidata.org/wiki/Q838041)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Libpng)  
**Source**: https://4ort.xyz/entity/libpng


## References

1. [The libpng Open Source Project on Open Hub: Licenses Page. Open Hub](https://www.openhub.net/p/libpng/licenses)
2. [The libpng Open Source Project on Open Hub: Languages Page. Open Hub](https://www.openhub.net/p/libpng/analyses/latest/languages_summary)
3. [libpng-1.6.21 is available. 2016](http://sourceforge.net/p/png-mng/mailman/message/34770176/)
4. [Source](https://sourceforge.net/projects/libpng/files/libpng16/1.6.25/)
5. [Source](https://sourceforge.net/projects/libpng/files/libpng16/1.6.26/)
6. [Source](https://sourceforge.net/projects/libpng/files/libpng16/1.6.27/)
7. [Source](https://sourceforge.net/projects/libpng/files/libpng16/1.6.30/)
8. [Source](http://libpng.org/pub/png/libpng-manual.txt)
9. [libpng 1.6.36 - December 1, 2018](http://libpng.org/pub/png/src/libpng-1.6.36-README.txt)
10. [Source](http://libpng.org/pub/png/src/libpng-1.6.37-README.txt)
11. [Source](http://libpng.org/pub/png/pnghist.html)
12. [Source](http://libpng.org/pub/png/src/libpng-1.6.38-README.txt)
13. [libpng-1.6.39, live at https://github.com/pnggroup/libpng/](https://sourceforge.net/p/png-mng/mailman/message/37738041/)
14. [[png-mng-announce] libpng-1.6.40, live at https://github.com/pnggroup/libpng](https://sourceforge.net/p/png-mng/mailman/message/37860896/)
15. [LIBPNG: PNG reference library -  Browse /libpng16/1.6.41 at SourceForge.net](https://sourceforge.net/projects/libpng/files/libpng16/1.6.41/)
16. [LIBPNG: PNG reference library -  Browse /libpng16/1.6.42 at SourceForge.net](https://sourceforge.net/projects/libpng/files/libpng16/1.6.42/)
17. [libpng 1.6.43 - February 23, 2024](https://sourceforge.net/projects/libpng/files/libpng16/1.6.43/)
18. [LIBPNG: PNG reference library - Browse /libpng16/1.6.44 at SourceForge.net](https://sourceforge.net/projects/libpng/files/libpng16/1.6.44/)
19. [Source](https://sourceforge.net/projects/libpng/files/libpng16/1.6.45/)
20. [LIBPNG: PNG reference library - Browse /libpng16/1.6.46 at SourceForge.net](https://sourceforge.net/projects/libpng/files/libpng16/1.6.46/)
21. [LIBPNG: PNG reference library -  Browse /libpng16/1.6.47 at SourceForge.net](https://sourceforge.net/projects/libpng/files/libpng16/1.6.47/)
22. [LIBPNG: PNG reference library - Browse /libpng16/1.6.48 at SourceForge.net](https://sourceforge.net/projects/libpng/files/libpng16/1.6.48/)
23. [LIBPNG: PNG reference library - Browse /libpng16/1.6.49 at SourceForge.net](https://sourceforge.net/projects/libpng/files/libpng16/1.6.49/)
24. [LIBPNG: PNG reference library - Browse /libpng16/1.6.50 at SourceForge.net](https://sourceforge.net/projects/libpng/files/libpng16/1.6.50/)
25. [LIBPNG: PNG reference library - Browse /libpng16/1.6.51 at SourceForge.net](https://sourceforge.net/projects/libpng/files/libpng16/1.6.51/)
26. [LIBPNG: PNG reference library - Browse /libpng16/1.6.52 at SourceForge.net](https://sourceforge.net/projects/libpng/files/libpng16/1.6.52/)
27. [LIBPNG: PNG reference library - Browse /libpng16/1.6.53 at SourceForge.net](https://sourceforge.net/projects/libpng/files/libpng16/1.6.53/)
28. [LIBPNG: PNG reference library - Browse /libpng16/1.6.54 at SourceForge.net](https://sourceforge.net/projects/libpng/files/libpng16/1.6.54/)
29. [LIBPNG: PNG reference library - Browse /libpng16/1.6.55 at SourceForge.net](https://sourceforge.net/projects/libpng/files/libpng16/1.6.55/)
30. [LIBPNG: PNG reference library - Browse /libpng16/1.6.56 at SourceForge.net](https://sourceforge.net/projects/libpng/files/libpng16/1.6.56/)
31. Freebase Data Dumps. 2013
32. Quora
33. [Source](https://svnweb.freebsd.org/ports?view=revision&revision=521645)